[TenTec] Re: TenTec Digest, Vol 24, Issue 13

[Duane A Calvin]

This is NOT a recommended fix on the Orion.  Shield pin connector is
actually audio return, and not ground on the Orion, so tying it to ground
is not recommended.  Check the archives - there was a long discussion a
few months back on a similar topic.

        73,  Duane


On Sun, 5 Dec 2004 17:46:38 EST N5bbc at aol.com writes:
>  
> In a message dated 12/5/2004 11:10:52 AM Central Standard Time,  
> tentec-request at contesting.com writes:
> 
> 
> Message: 9
> Date: Sun, 5 Dec 2004 09:21:28 -0500
> From: "Jeff  Kelly" <jkelly at bellatlantic.net>
> Subject: Re: [TenTec] Orion and the  706 Electret Mike...
> To: <eric.sensi at skynet.be>,  <tentec at contesting.com>
> Message-ID:  <000901c4dad5$b5ef13d0$6401a8c0 at dell620comp2>
> Content-Type:  text/plain;    charset="iso-8859-1"
> 
> Actually I am  experiencing the same issue with my 705 and
> Omni VI.  I will talk to  TT on Monday and get an idea of what
> is happening.  My hand mic does  not cause this problem.
> 
> Jeff
> 
> KT2K
> 
> >
> > I have a  question about the Orion and it's companion microphone, 
> the  #706.
> >
> > 1. Sometimes (I say sometimes, not everytime !), when  the mic PTT 
> switch
> is
> > engaged I have a strange behaviour with the  mic and the Orion... 
> It seems
> > that it's an HF feedback problem (but  IMO, it is not !) into the
> microphone
> > causing the s-meter needle to  go up full scale, the alc LED is 
> then always
> > on (not flashing) and I  can hear thru the speaker of the Orion a 
> big
> >  "Brrrrrrrrrrrr",
> 
> 
> 
> 
> 
> This has probally been hashed before but as a  relatively new TEN 
> TEC 
> cultist, I'll probally reinvent the wheel many times. 
>   Had a similar problem with Omni  VI/3   & 705 mic.  Found that the 
> shield 
> in the microphone  cable did not connect to chassis ground thru the 
> mic. plug. 
> I added a wire  from the shield pin connection to the connector 
> shell, just 
> brought it out with  the mic cord and connected it under one of the 
> cord clamp 
> screws. This takes  shield to chassis ground when the microphone 
> connector is 
> TIGHTENED. Also I had  some conductive spray coating (don't know 
> where it came 
> from) that I sprayed  onto the inside of the mic base.  This rig 
> seems to be a 
> little leaky  RF  wise, seems like my Triton IV had similar problems 
> with RF. 
>   This was easier than opening the rig and making  connection to 
> ground as it 
> should be.  Good Luck  Ed   N5BBC
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> 
> 


--------------------------------------
Duane Calvin, AC5AA
Austin, Texas

http://home.austin.rr.com/ac5aa